As a new era begins, Queen Elizabeth struggles to navigate her while preserving both the monarchy and her marriage. Beginning with soldiers in Her Majesty's Armed Forces fighting an illegal war in Egypt , and ending with the downfall of her third Prime Minister, Harold Macmillan after a devastating scandal, the second season bears witness to the end of the age of deference, and ushers in the revolutionary era of the 1960s. This drama follows the political rivalries and romance of Queen Elizabeth II's reign and the events that shaped the second half of the 20th century.